Question

I have a function in header file Class2.hpp of the form:

class Class2{
void Test::func(std:: string & text, Class1::enum_var var1, unsigned var2, unsigned     &var3);};

I have Class1 of the form:

  class Class1{
  public:
 /// Different literal types
  enum enum_var {
  enum_var1, enum_var2, enum_var3
 }; };

I have defined the above function in Class2.cpp as

 void Test::func(std:: string & text, Class1::enum_var var1, unsigned var2, unsigned     &var3){
 cout<<"inside the function";
 }

Now I am calling the above function as:

Class2 clsObj;
std::string text="abc";
int var3=0;
clsObj.func( text, Class1::enum_var1, 0, &var3);

However, when I am running the program its giving me the following errors:

 error: no matching function for call to ‘Class2::func(std::string*,   Class1::enum_var1,  int, int*)’
 note: candidate is:
 void Class2::func(std::string&, Type::ID, unsigned int, unsigned int&)
 note:  no known conversion for argument 4 from ‘unsigned int*’ to ‘unsigned int&’

I am not getting how to get rid of the error..can someone be kind enough to help PLEASE.

Also, I want the changes in var3 to be reflected back…therefore apart from returning or passing by reference I have no choice..and when I pass var3 by reference its giving me errors.

Answer 1

clsObj.func(& text, Class1::enum_var1, 0 &var3);

should be:

clsObj.func(text, Class1::enum_var1, 0, var3);

Reference is an alias to the object being referred and the refferant is accessible just by the reference name.